AdamKTexas

I know it might be overkill, but I've got a couple of extra bottles of Motul RBF600 from my other car on the shelf. Just want to be sure I can use this on the GS F or is this not compatible? If not, what do you recommend?

I'm planning on doing my first track day in the GS F in a few weeks, changing pads/rotors at this time as well. Hence, I was thinking of what fluid to use.

lobuxracer

iTrader: (2)

RBF600 is safe to mix. There are only a few that are not. Handy comparison chart here: https://www.lelandwest.com/brake-flu...ison-chart.cfm

If the plan is to do a full R&R, make sure you have a liter. 500cc won't be enough to do a full swap.

AdamKTexas

Thanks! So after posting this, I went to go check in the garage, and as it turns out both of my Motul bottles aren't sealed, and of course, I don't recall how long it's been. So, I'll discard these.

In this case, what brake fluid do you all recommend? This will probably be the only track day on this fluid, for at least another year. Still recommend Motul, or is that overkill?

lobuxracer

iTrader: (2)

I run Brembo LCF+ in my IS F, and Valvoline in the wife's GS F. Her car never sees track duty. Using that comparison chart, the ones that stand out for me are the Motul RBF600 and the ATE Typ2. Both have a high wet boiling point and a low cost per ounce. If money isn't the issue, then you can't be Castrol SRF for the amazing wet boiling point and stability. You'll find SRF in more professional racing vehicles than anything else. I would not recommend Brembo LCF+ for your use, it requires frequent maintenance because it is highly hygroscopic compared to most other brake fluids.